Truss



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TRUSS.

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ATENT TRUSS.

SPECIFICATION forming part of Letters Patent No. 328,985, dated October 27, 1885.

Application filed May 14, 1885. Serial No. 165,448. (No model.)

.To aZZ whom it may concern:

Be it known that I, SEYMOUR M. VAN AL; STINE, of Melrose, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Trusses, which will, in connection with the accompanying drawings, be hereinafter fully described, and specifically defined in'the appended claims.

This invention relates to trusses; and it consists in the construction and combination of divers devices embodied therein, as hereinafter more particularly and fully set forth and claimed. 7 g

In said drawings, Figure l is a perspective View of a truss embodying my invention. Fig. 2 is a sectional elevation of a portion of the truss shown in big. 1, the section being taken as on line Z Z, Fig. 3. Fig. 3 is a transverse section taken as on line X X, Fig. 2,and viewed as from the left therein. Fig. 4 is a perspec' tive View of the conical pad cushioning spring shown in section in Figs. 2 and 3.

The usual hoop-like spring which encircles the body of the user is marked a. The back pad is shown at b, and. is pivotally mounted on bar 4. in the manner to be described, said bar *6 being mounted on the spring by means of curved ears 72, formed on said bar, and by stud g, which passes through both the spring and bar.

The front pads c d are pivotally mounted on bar 6, (as will be described,) said bar being secured on spring a by means of curved ears h, formed on said bar at each end thereof, and which overlap the edges of the spring. Said bar is lineallyadjustable on the spring, and is secured in position by screw 70, by which and a plurality of holes, Z, in said bar the same may be adjusted, as above stated.

For the purpose of pivotally mounting the pads upon their respective supporting-bars with a susceptibility of yielding elasticity, a stud, m, is, by its neck aarigidly secured in the bar, a hemispheric enlargement, 10,of said stud being seated in a corresponding socket, q, formed in plate j, secured to the back of the pad, while in the back of said pad is a circular cavity or recess, 22, in which is loosely seated the conical spiral spring u,which is held in proper relation to the other parts by the shank t,extending'fro1n hemisphere p and arranged axially in said spring.

I claim as 1nyinvent-ion 1. In a truss, the combination, with spring a, of bar 6, formed with curved ears h at the ends thereof, adapted to secure it upon said spring, and the pads c d, pivotally mounted upon the respective ends of said bar, substantially as specified.

2. In a truss, the combination, with the recessed pad. its socketed back j, and conical spring u,of stud m, formed with a hemisphere, p, to tit socket q in back j, a shank, t, to enter and support said spring, and a neck, a, by which to secure it to the supportingbar, all substantially as specified.

SEYMOUR M. VAN ALSTINE.

Witnesses:

T. W. PORTER, EUGENE HUMPHREY. 

